MikeDigitize

// a function returning `something` in javascript is a useful tool

function foo() {
    return "foo";
}

// create a reference
var bar;
// if we assign `bar` to `foo`
bar = foo;

MikeDigitize

/*
    Constructor vs Literal
*/

// Array
var foo = new Array(); // constructor
var bar = [];  // literal

// difference?
// constructor - inconsistent API

MikeDigitize

function lotto() {
	function getBalls() {
		var random = getRandom(1,59);
		if(!balls.includes(random)) {
			balls.push(random);
		}
		if(balls.length < 6) {
			return getBalls();
		}
		else {

MikeDigitize

function stillContainsArray(arr) {
    return arr.some(item => item instanceof Array);
}

function concat(arr) {
    return arr.reduce((a,b) => a.concat(b), []);
}

function flatten(arr) {
    while(stillContainsArray(arr)) {

MikeDigitize

var restaraunt = {
    orders : [],
    order : function(order) {
        this.orders.push(order);
    },
    total : function(orders) {
        orders = orders || this.orders;
        return orders.reduce(function(total, order) {
            return total + order.cost;
        }, 0);

MikeDigitize

var PubSub = (function() {
	let listeners = {};
	return {
		listeners,
		subscribe (evt, fn) {
			if(!this.listeners.hasOwnProperty(evt)) {
				this.listeners[evt] = [];
			}
			this.listeners[evt].push(fn);
			return () => {

MikeDigitize

const capitalise = f => replace(/\b[a-z]/g, f => f.toUpperCase());
const lowercaseilise = f => replace(/\b[A-Z]/g, f => f.toLowerCase());

MikeDigitize

var jQuery = (function() {

	function jQuery(selector, context = document) {
		return new jQuery.fn.init(selector, context); 
	}

	jQuery.fn = jQuery.prototype ;

	jQuery.fn.css = function(prop, value) {
		this.pushStack.forEach(el => el.style[prop] = value);

MikeDigitize

var selector = '#aoFooterSmallPrint';
var addEvent = a => b => c => a.addEventListener(b, c);
var footerText = document.querySelector(selector);
var footerTextEvents = addEvent(footerText);
var footerTextOnClick = footerTextEvents('click');
var footerTextOnMouseOver = footerTextEvents('mouseover');
var log = evt => console.log(evt);
footerTextOnClick(log);
footerTextOnMouseOver(log);

MikeDigitize

// combine properties to base prototype
function Combine(target, fns = []) {

  let protoCopy = Object.assign(target.prototype);
	
  let extendedProto = (Array.isArray(fns) ? fns : [fns]).reduce((proto, fn) => {
    Object.getOwnPropertyNames(fn.prototype).forEach(prop => {
      if(!(protoCopy.hasOwnProperty(prop))) {
        proto[prop] = fn.prototype[prop];
      }